效果展示如下: 

Ext.Net动态加载多表头

aspx页面代码:

<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head />
        </SelectionModel>
    </ext:GridPanel>
    </form>
</body>
</html>

aspx.cs文件代码:

if (!IsPostBack)
{
  //清除旧数据与记录集
      this.StoreAll.Reader.Clear();
      this.gpList.SelectionModel.Clear();
      this.gpList.ColumnModel.Columns.Clear();
      this.StoreAll.Model.Clear();

  DataTable dtProject = new PerforBLL().GetData();//从数据库中读取的数据

  //数据源
     DataTable results = new DataTable();
     results.Columns.Add("Name");

  //数据集Store
  Model extModel = new Model();
  extModel.Fields.Add(new ModelField("Name", ModelFieldType.String));
  
  //显示的列数据
  List<ColumnBase> extColumnBaseList = new List<ColumnBase>();
  extColumnBaseList.Add(new RowNumbererColumn() { ID = "RowNumbererColumn1", Width = 25 });
  extColumnBaseList.Add(new Column() { ID = "cName", Text = "名称", Width = 300, DataIndex = "Name" });

  Column wZJ= new Column() { ID = "cWHZ", Text = "汇总" };

  extModel.Fields.Add(new ModelField("W-T", ModelFieldType.Float));
      extModel.Fields.Add(new ModelField("W-P", ModelFieldType.Float));

      if (!results.Columns.Contains("W-T")) results.Columns.Add("W-T");
      if (!results.Columns.Contains("W-P")) results.Columns.Add("W-P");

       wZJ.Columns.Add(new Column()
       {
         Text = "时间",
             Width = 50,
             DataIndex = "W-T",
             Sortable = true
       });
       wZJ.Columns.Add(new Column()
       {
         Text = "成本",
             Width = 50,
             DataIndex = "W-P",
             Sortable = true
  });

  extColumnBaseList.Add(wZJ);

  //动态给数据

  foreach (DataRow drProject in dtProject.Rows)
     {
    DataRow dr = results.NewRow();
           dr["Name"] = drProject["Name"];
    dr["W-T"]= 0;
           dr["W-P"] = 0;

    results.Rows.Add(dr);

  }

  this.StoreAll.Model.Add(extModel);
      this.gpList.ColumnModel.Columns.AddRange(extColumnBaseList);
      this.StoreAll.DataSource = results;
      this.StoreAll.DataBind();
      this.gpList.Render();

}

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